Omikuji Tools Text & Dev

Romaji Converter

Convert hiragana, katakana and kanji into Hepburn, Kunrei or passport-style romaji, with long-vowel and capitalization options.

✨ Features

  • Three styles – Hepburn, Kunrei-shiki and Japanese passport – with each style's rules (sha/sya, n/m, tch) applied automatically
  • Kanji are converted through a reading dictionary (kuromoji) in your browser; check names and place names, which can be misread
  • Long vowels as macrons, plain vowels or omitted; lower case, capitalized or upper case
  • Kana-to-romaji chart for the selected style; copy the result or share a URL

🪄 Use cases

Passport and card names

Passport style follows the MOFA rules (大野 → ONO, 新聞 → SHIMBUN).

Documents, business cards, signatures

Hepburn for names and addresses in English.

School homework

Kunrei-shiki answers and the chart to check them.

Reading lyrics and place names

Paste text with kanji and get the pronunciation.

🔒 Privacy

Text is processed in your browser and never sent to a server. The kanji dictionary (about 17 MB) is downloaded from this site once. Only when you shorten a share URL is that URL (including the text) sent to the shortening service.

❓ FAQ

Hepburn vs Kunrei-shiki?

Hepburn follows English pronunciation (shi, chi, tsu, fu, ji). Kunrei-shiki follows the kana table systematically (si, ti, tu, hu, zi) and is taught in Japanese elementary schools. Station names, passports and most English text use Hepburn.

What are the passport rules?

Long o and u are omitted (おおの → ONO, さいとう → SAITO), n becomes M before b, m and p (なんば → NAMBA), and a small っ doubles the next consonant. Spellings such as OHNO are exceptions granted on request.

A kanji reading is wrong

Readings are estimated by a morphological dictionary, so names and place names can be misread. Type the correct reading in hiragana instead.

I cannot type macrons (ō)

Choose "Keep vowels" for toukyou-style spelling or "Omit" for tokyo.

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Style

Standard English-oriented romanization (shi, chi, tsu, fu, ji) used on signs and in dictionaries

Kana to romaji chart (Hepburn)

あaいiうuえeおo
かkaきkiくkuけkeこko
さsaしshiすsuせseそso
たtaちchiつtsuてteとto
なnaにniぬnuねneのno
はhaひhiふfuへheほho
まmaみmiむmuめmeもmo
やyaゆyuよyo
らraりriるruれreろro
わwaをo
んn
がgaぎgiぐguげgeごgo
ざzaじjiずzuぜzeぞzo
だdaぢjiづzuでdeどdo
ばbaびbiぶbuべbeぼbo
ぱpaぴpiぷpuぺpeぽpo
きゃkyaきゅkyuきょkyo
しゃshaしゅshuしょsho
ちゃchaちゅchuちょcho
にゃnyaにゅnyuにょnyo
ひゃhyaひゅhyuひょhyo
みゃmyaみゅmyuみょmyo
りゃryaりゅryuりょryo
ぎゃgyaぎゅgyuぎょgyo
じゃjaじゅjuじょjo
びゃbyaびゅbyuびょbyo
ぴゃpyaぴゅpyuぴょpyo

Blank cells have no kana. Sounds that differ from Kunrei-shiki are in bold.